Public bug reported:
While upgrading my system remotely from Ubuntu 24.04 to Ubuntu 26.04
LTS, the upgrade encountered errors while processing openssh-server and
ssh:
Except from screen logs:
[...]
Errors were encountered while processing:
openssh-server
ssh
Exception during pm.DoInstall(): W:Ignoring file
'webupd8team-ubuntu-atom-xenial.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'brostrend.list.migrate' in directory '/etc/apt/sources.list.d/' as it has
an invalid filename extension, W:Ignoring file
'git-core-ubuntu-ppa-focal.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'gitlab_gitlab-ce.list.migrate' in directory '/etc/apt/sources.list.d/' as
it has an invalid filename extension, W:Ignoring file 'getdeb.list.migrate' in
directory '/etc/apt/sources.list.d/' as it has an invalid filename extension,
W:Ignoring file 'gitlab_gitlab-ee.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'webupd8team-ubuntu-atom-xenial.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'brostrend.list.migrate' in directory '/etc/apt/sources.list.d/' as it has
an invalid filename extension, W:Ignoring file
'git-core-ubuntu-ppa-focal.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'gitlab_gitlab-ce.list.migrate' in directory '/etc/apt/sources.list.d/' as
it has an invalid filename extension, W:Ignoring file 'getdeb.list.migrate' in
directory '/etc/apt/sources.list.d/' as it has an invalid filename extension,
W:Ignoring file 'gitlab_gitlab-ee.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'webupd8team-ubuntu-atom-xenial.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'brostrend.list.migrate' in directory '/etc/apt/sources.list.d/' as it has
an invalid filename extension, W:Ignoring file
'git-core-ubuntu-ppa-focal.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'gitlab_gitlab-ce.list.migrate' in directory '/etc/apt/sources.list.d/' as
it has an invalid filename extension, W:Ignoring file 'getdeb.list.migrate' in
directory '/etc/apt/sources.list.d/' as it has an invalid filename extension,
W:Ignoring file 'gitlab_gitlab-ee.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'webupd8team-ubuntu-atom-xenial.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'brostrend.list.migrate' in directory '/etc/apt/sources.list.d/' as it has
an invalid filename extension, W:Ignoring file
'git-core-ubuntu-ppa-focal.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'gitlab_gitlab-ce.list.migrate' in directory '/etc/apt/sources.list.d/' as
it has an invalid filename extension, W:Ignoring file 'getdeb.list.migrate' in
directory '/etc/apt/sources.list.d/' as it has an invalid filename extension,
W:Ignoring file 'gitlab_gitlab-ee.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'webupd8team-ubuntu-atom-xenial.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'brostrend.list.migrate' in directory '/etc/apt/sources.list.d/' as it has
an invalid filename extension, W:Ignoring file
'git-core-ubuntu-ppa-focal.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension, W:Ignoring
file 'gitlab_gitlab-ce.list.migrate' in directory '/etc/apt/sources.list.d/' as
it has an invalid filename extension, W:Ignoring file 'getdeb.list.migrate' in
directory '/etc/apt/sources.list.d/' as it has an invalid filename extension,
W:Ignoring file 'gitlab_gitlab-ee.list.migrate' in directory
'/etc/apt/sources.list.d/' as it has an invalid filename extension,
E:Sub-process /usr/bin/dpkg returned an error code (1)
[...]
ProblemType: Package
DistroRelease: Ubuntu 26.04
Package: openssh-server 1:10.2p1-2ubuntu3.8
ProcVersionSignature: Ubuntu 6.8.0-147.147-generic 6.8.12
Uname: Linux 6.8.0-147-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Thu Oct 22 16:36:11 2026
ErrorMessage: old openssh-server package postinst maintainer script subprocess
failed with exit status 1
InstallationDate: Installed on 2016-10-12 (3663 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
Python3Details: /usr/bin/python3.14, Python 3.14.4, python3-minimal,
3.14.3-0ubuntu2
PythonDetails: N/A
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
dpkg 1.23.7ubuntu1
apt 3.2.0
SourcePackage: openssh
Title: package openssh-server 1:10.2p1-2ubuntu3.8 failed to install/upgrade:
old openssh-server package postinst maintainer script subprocess failed with
exit status 1
UpgradeStatus: Upgraded to resolute on 2026-10-22 (0 days ago)
** Affects: openssh (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-package resolute
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https://bugs.launchpad.net/bugs/2171991
Title:
package openssh-server 1:10.2p1-2ubuntu3.8 failed to install/upgrade:
old openssh-server package postinst maintainer script subprocess
failed with exit status 1
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